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<div class="titlepage"><div><div><h4 class="title">
<a name="asio.reference.ssl__stream.async_write_some"></a><a class="link" href="async_write_some.html" title="ssl::stream::async_write_some">ssl::stream::async_write_some</a>
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<p>
          <a class="indexterm" name="asio.indexterm.ssl__stream.async_write_some"></a> 
Start
          an asynchronous write.
        </p>
<pre class="programlisting">template&lt;
    typename <a class="link" href="../ConstBufferSequence.html" title="Constant buffer sequence requirements">ConstBufferSequence</a>,
    typename <a class="link" href="../WriteHandler.html" title="Write handler requirements">WriteHandler</a>&gt;
<a class="link" href="../asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> async_write_some(
    const ConstBufferSequence &amp; buffers,
    WriteHandler &amp;&amp; handler);
</pre>
<p>
          This function is used to asynchronously write one or more bytes of data
          to the stream. The function call always returns immediately.
        </p>
<h6>
<a name="asio.reference.ssl__stream.async_write_some.h0"></a>
          <span><a name="asio.reference.ssl__stream.async_write_some.parameters"></a></span><a class="link" href="async_write_some.html#asio.reference.ssl__stream.async_write_some.parameters">Parameters</a>
        </h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl>
<dt><span class="term">buffers</span></dt>
<dd><p>
                The data to be written to the stream. Although the buffers object
                may be copied as necessary, ownership of the underlying buffers is
                retained by the caller, which must guarantee that they remain valid
                until the handler is called.
              </p></dd>
<dt><span class="term">handler</span></dt>
<dd>
<p>
                The handler to be called when the write operation completes. Copies
                will be made of the handler as required. The equivalent function
                signature of the handler must be:
</p>
<pre class="programlisting">void handler(
  const asio::error_code&amp; error, // Result of operation.
  std::size_t bytes_transferred           // Number of bytes written.
);
</pre>
<p>
              </p>
</dd>
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<h6>
<a name="asio.reference.ssl__stream.async_write_some.h1"></a>
          <span><a name="asio.reference.ssl__stream.async_write_some.remarks"></a></span><a class="link" href="async_write_some.html#asio.reference.ssl__stream.async_write_some.remarks">Remarks</a>
        </h6>
<p>
          The async_write_some operation may not transmit all of the data to the
          peer. Consider using the <a class="link" href="../async_write.html" title="async_write"><code class="computeroutput">async_write</code></a>
          function if you need to ensure that all data is written before the asynchronous
          operation completes.
        </p>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2003-2018 Christopher M. Kohlhoff<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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